20 Best Noctua Slim 140mm Fan [2024]

Are you looking for the best Noctua Slim 140mm Fan? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Noctua Slim 140mm Fan.

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1 Noctua NF-A12x15 PWM, Premium Quiet Slim Fan, 4-Pin (120x15mm, Brown) Noctua NF-A12x15 PWM, Premium Quiet Slim Fan, 4-Pin (120x15mm, Brown)
2 Noctua NF-A14 iPPC-3000 PWM, Heavy Duty Cooling Fan, 4-Pin, 3000 RPM (140mm, Black) Noctua NF-A14 iPPC-3000 PWM, Heavy Duty Cooling Fan, 4-Pin, 3000 RPM (140mm, Black)
3 Noctua NF-A12x15 FLX, Premium Quiet Slim Fan, 3-Pin (120x15mm, Brown) Noctua NF-A12x15 FLX, Premium Quiet Slim Fan, 3-Pin (120x15mm, Brown)
4 Noctua NF-A14 iPPC-2000 IP67 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black) Noctua NF-A14 iPPC-2000 IP67 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black)
5 Noctua NF-A12x15 PWM chromax.Black.swap, Premium Quiet Slim Fan, 4-Pin (120x15mm, Black) Noctua NF-A12x15 PWM chromax.Black.swap, Premium Quiet Slim Fan, 4-Pin (120x15mm, Black)
6 Noctua NF-A9x14 HS-PWM chromax.Black.swap, Premium Quiet Slim Fan, 4-Pin (92x14mm, Black) Noctua NF-A9x14 HS-PWM chromax.Black.swap, Premium Quiet Slim Fan, 4-Pin (92x14mm, Black)
7 Noctua NF-P14s redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm, Grey) Noctua NF-P14s redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm, Grey)
8 Noctua NF-A14 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (140mm, Black) Noctua NF-A14 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (140mm, Black)
9 Noctua NF-A14 PWM, Premium Quiet Fan, 4-Pin (140mm, Brown) Noctua NF-A14 PWM, Premium Quiet Fan, 4-Pin (140mm, Brown)
10 Noctua NF-A15 HS-PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (140mm, Black) Noctua NF-A15 HS-PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (140mm, Black)
11 Noctua NF-A12x25 LS-PWM, Ultra Quiet Silent Fan, 4-Pin (120mm, Brown) Noctua NF-A12x25 LS-PWM, Ultra Quiet Silent Fan, 4-Pin (120mm, Brown)
12 Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown) Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)
13 Noctua NF-P12 redux-1700 PWM, High Performance Cooling Fan, 4-Pin, 1700 RPM (120mm, Grey) Noctua NF-P12 redux-1700 PWM, High Performance Cooling Fan, 4-Pin, 1700 RPM (120mm, Grey)
14 Noctua NF-P14r redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm Grey) Noctua NF-P14r redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm Grey)
15 Noctua NF-F12 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black) Noctua NF-F12 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black)
16 Noctua NF-P14s redux-1200 PWM, Quiet Fan, 4-Pin, 1200 RPM (140mm, Grey) Noctua NF-P14s redux-1200 PWM, Quiet Fan, 4-Pin, 1200 RPM (140mm, Grey)
17 Noctua NF-A14 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (140mm,... Noctua NF-A14 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (140mm,...
18 noctua NF-A12x15 PWM - NF-A12x15 PWM 120mm 1850RPM Fan noctua NF-A12x15 PWM - NF-A12x15 PWM 120mm 1850RPM Fan
19 Noctua NF-A9x14 PWM, Premium Quiet Fan, 4-Pin (92x14mm, Brown) Noctua NF-A9x14 PWM, Premium Quiet Fan, 4-Pin (92x14mm, Brown)
20 Noctua NF-A12x25 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black) Noctua NF-A12x25 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black)
Bestseller No. 1
Noctua NF-A12x15 PWM, Premium Quiet Slim Fan, 4-Pin (120x15mm, Brown)
  • Premium quiet slim fan, 120x120x15 mm, 12V, 4-pin PWM, max. 1850 RPM, max. 23.9 dB(A), >150,000 h MTTF
  • Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 120x15mm slim design ideal for low-profile CPU coolers, HTPCs, ITX builds, space-restricted applications etc.
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 1850rpm maximum speed (1400rpm with supplied Low-Noise Adaptor)
  • Includes anti-vibration mounts, fan screws, extension cable and y-cable for running two PWM fans on the same header
SaleBestseller No. 2
Noctua NF-A14 iPPC-3000 PWM, Heavy Duty Cooling Fan, 4-Pin, 3000 RPM (140mm, Black)
  • Heavy duty cooling fan, 140x140x25 mm, 12V, 4-pin PWM, max. 3000 RPM, max. 41.3 dB(A), >150,000 h MTTF
  • Award-winning 140x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior cooling efficiency
  • 12V 3000rpm model (41.3dB) with 4-pin PWM connector for automatic speed control via 4-pin PWM fan headers, broad 800-3000rpm speed range
  • High-speed industrialPPC version for industrial heavy-duty applications that require extreme cooling performance and advanced ingress protection
  • Ruggedised fibre-glass reinforced polyamide construction and IP52 certified water and dust protection
Bestseller No. 3
Noctua NF-A12x15 FLX, Premium Quiet Slim Fan, 3-Pin (120x15mm, Brown)
  • Premium quiet slim fan, 120x120x15 mm, 12V, 3-pin Molex, 1850/1400/950 RPM, max. 23.9 dB(A), >150,000 h MTTF
  • Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 120x15mm slim design ideal for low-profile CPU coolers, HTPCs, ITX builds, space-restricted applications etc.
  • 3-pin FLX version provides 1850/1400/950rpm speed settings via Low-Noise Adaptors to fine-tune the fan for maximum airflow or near-silent operation
  • Includes anti-vibration mounts, fan screws, extension cable and 3:4-pin adaptor for powering the fan directly from the power supply
SaleBestseller No. 4
Noctua NF-A14 iPPC-2000 IP67 PWM, Heavy Duty Cooling Fan, 4-Pin, 2000 RPM (140mm, Black)
  • Heavy duty cooling fan, 140x140x25 mm, 12V, 4-pin PWM, IP67 certified, max. 2000 RPM, max. 31.5 dB(A), >150,000 h MTTF
  • Award-winning 140x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior cooling efficiency
  • 12V 2000rpm model (31.5 dB(A)) with 4-pin PWM connector for automatic speed control via 4-pin PWM fan headers, broad 500-2000rpm speed range
  • High-speed industrialPPC version for industrial heavy-duty applications that require extreme cooling performance and advanced ingress protection
  • Ruggedised fibre-glass reinforced polyamide construction and IP67 certified water and dust protection
Bestseller No. 5
Noctua NF-A12x15 PWM chromax.Black.swap, Premium Quiet Slim Fan, 4-Pin (120x15mm, Black)
  • Premium quiet slim fan, 120x120x15mm, 12V, 4-pin PWM, max. 1850 RPM, max. 23.9 dB(A), >150,000 h MTTF
  • Award-winning 120x15mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 120x15mm slim design ideal for low-profile CPU coolers, HTPCs, ITX builds, space-restricted applications etc.
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 450-1850rpm speed range, stops at 0% PWM for semi-passive systems
  • chromax.black.swap edition with all-black design and self-adhesive red, black, white, blue, yellow and green anti-vibration pads for...
Bestseller No. 6
Noctua NF-A9x14 HS-PWM chromax.Black.swap, Premium Quiet Slim Fan, 4-Pin (92x14mm, Black)
  • Premium quiet fan, 92x92x14mm, 12V, 4-pin PWM, max. 2500 RPM, max. 23.6 dB(A), >150,000 h MTTF
  • Award-winning 92x14mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 14mm slim design is ideal for low-profile 9cm CPU coolers (e.g. Noctua NH-L9 series), compact PC cases and other space-restricted applications
  • 4-pin HS-PWM version for automatic speed control via 4-pin PWM fan headers, broad 500-2500rpm speed range, stops at 0% PWM for semi-passive systems
  • chromax.black.swap edition with all-black design and self-adhesive red, black, white, blue, yellow and green anti-vibration pads for...
SaleBestseller No. 7
Noctua NF-P14s redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm, Grey)
  • High performance cooling fan, 140x140x25 mm, 12V, 4-pin PWM, max. 1500 RPM, max. 25.8 dB(A), >150,000 h MTTF
  • Renowned NF-P14s high-end 140x25mm 12V fan, more than 100 awards and recommendations from international computer hardware websites and magazines,...
  • Highly optimised low-noise design provides outstanding quietness of operation, excellent static pressure and strong airflow (CFM), square frame for...
  • 1500rpm 4-pin PWM version with excellent balance of performance and quietness, supports automatic motherboard speed control (powerful airflow when...
  • Streamlined redux edition: proven Noctua quality at an attractive price point, wide range of optional accessories (anti-vibration mounts, S-ATA...
Bestseller No. 8
Noctua NF-A14 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (140mm, Black)
  • Premium quiet fan, 140x140x25mm, 12V, 4-pin PWM, max. 1500 RPM, max. 24.6 dB(A), >150,000 h MTTF
  • Award-winning NF-A14 design has received more than 100 recommendations from international hardware websites and magazines
  • Square frame with excellent airflow and pressure performance: ideal for use on water cooling radiators or as a case fan
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 1500rpm maximum speed
  • chromax.black.swap edition with attractive all-black design and swappable red, black, white, blue, yellow and green anti-vibration pads for...
SaleBestseller No. 9
Noctua NF-A14 PWM, Premium Quiet Fan, 4-Pin (140mm, Brown)
  • Premium quiet fan, 140x140x25 mm, 12V, 4-pin PWM, max. 1500 RPM, max. 24.6 dB(A), >150,000 h MTTF
  • Award-winning 140x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • Square frame design is ideal for water cooling radiators (AIO or DIY), PC cases and other chassis (intake & exhaust), cabinet ventilation, etc.
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 300-1500rpm speed range (1200rpm max. with supplied Low-Noise Adaptor)
  • Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header
Bestseller No. 10
Noctua NF-A15 HS-PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (140mm, Black)
  • Premium quiet fan, 140x150x25 mm, 12V, 4-pin PWM, max. 1500 RPM, max. 24.6 dB(A), >150,000 h MTTF
  • Award-winning NF-A15 design has received more than 100 recommendations from international hardware websites and magazines
  • 150mm wide round frame with 120mm standard mounting holes (105mm hole spacing): ideal for use on CPU coolers such as the popular NH-D15, NH-D15S or...
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 1500rpm maximum speed
  • chromax.black.swap edition with attractive all-black design and swappable red, black, white, blue, yellow and green anti-vibration pads for...
Bestseller No. 11
Noctua NF-A12x25 LS-PWM, Ultra Quiet Silent Fan, 4-Pin (120mm, Brown)
  • Ultra low noise fan, 120x120x25mm, 12V, 4-pin PWM, max. 1200 RPM, max. 12.1 dB(A), >150,000 h MTTF
  • Next-generation 120x25mm A-series design provides unprecedented quiet cooling performance, ideal for CPU coolers and watercooling radiators
  • State-of-the-art engineering (AAO frame, Flow Acceleration Channels, record tight 0.5mm tip clearance) and construction (Sterrox LCP material,...
  • Ultra-quiet 4-pin LS-PWM version, ideal for semi-passive setups (fan stops at 0% PWM) or ultra-low-noise applications that require PWM control
  • Includes anti-vibration mounts, radiator gasket, fan screws, extension cable and y-cable for running two PWM fans on the same header
Bestseller No. 12
Noctua NF-A12x25 PWM, Premium Quiet Fan, 4-Pin (120mm, Brown)
  • Premium quiet fan, 120x120x25mm, 12V, 4-pin PWM, max. 2000 RPM, max. 22.6 dB(A), >150,000 h MTTF
  • Next-gen A-series design combines high airflow and high static pressure performance, ideal both as a case fan and for CPU coolers, watercooling...
  • State-of-the-art engineering (AAO frame, Flow Acceleration Channels, record tight 0.5mm tip clearance) and construction (Sterrox LCP material,...
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 2000rpm maximum speed (1700rpm with supplied Low-Noise Adaptor)
  • Includes anti-vibration mounts, radiator gasket, fan screws, extension cable and y-cable for running two PWM fans on the same header
Bestseller No. 13
Noctua NF-P12 redux-1700 PWM, High Performance Cooling Fan, 4-Pin, 1700 RPM (120mm, Grey)
  • High performance cooling fan, 120x120x25 mm, 12V, 4-pin PWM, max. 1700 RPM, max. 25.1 dB(A), >150,000 h MTTF
  • Renowned NF-P12 high-end 120x25mm 12V fan, more than 100 awards and recommendations from international computer hardware websites and magazines,...
  • Pressure-optimised blade design with outstanding quietness of operation: high static pressure and strong CFM for air-based CPU coolers, water cooling...
  • 1700rpm 4-pin PWM version with excellent balance of performance and quietness, supports automatic motherboard speed control (powerful airflow when...
  • Streamlined redux edition: proven Noctua quality at an attractive price point, wide range of optional accessories (anti-vibration mounts, S-ATA...
Bestseller No. 14
Noctua NF-P14r redux-1500 PWM, High Performance Cooling Fan, 4-Pin, 1500 RPM (140mm Grey)
  • High performance cooling fan, 140x140x25 mm, 12V, 4-pin PWM, max. 1500 RPM, max. 25.8 dB(A), >150,000 h MTTF
  • Renowned NF-P14r high-end 140x25mm round-frame 12V fan, more than 100 awards and recommendations from international computer hardware websites and...
  • Highly optimised low-noise design provides outstanding quietness of operation, excellent static pressure and strong airflow (CFM), round frame for...
  • 1500rpm 4-pin PWM version with excellent balance of performance and quietness, supports automatic motherboard speed control (powerful airflow when...
  • Streamlined redux edition: proven Noctua quality at an attractive price point, wide range of optional accessories (anti-vibration mounts, S-ATA...
Bestseller No. 15
Noctua NF-F12 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black)
  • Premium quiet fan, 120x120x25mm, 12V, 4-pin PWM, max. 1500 RPM, max. 22.4 dB(A), >150,000 h MTTF
  • Award-winning NF-F12 design has received more than 100 recommendations from international hardware websites and magazines
  • Focused Flow frame for outstanding static pressure performance, ideal for use on heatsinks and radiators
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 1500rpm maximum speed
  • chromax.black.swap edition with all-black design and swappable red, black, white, blue, yellow and green anti-vibration pads for colour-customising
SaleBestseller No. 16
Noctua NF-P14s redux-1200 PWM, Quiet Fan, 4-Pin, 1200 RPM (140mm, Grey)
  • Quiet fan, 140x140x25 mm, 12V, 4-pin PWM, max. 1200 RPM, max. 19.6 dB(A), >150,000 h MTTF
  • Renowned NF-P14s high-end 140x25mm 12V fan, more than 100 awards and recommendations from international computer hardware websites and magazines,...
  • Highly optimised low-noise design provides outstanding quietness of operation, excellent static pressure and strong airflow (CFM), square frame for...
  • 1200rpm 4-pin PWM version with excellent balance of performance and quietness, supports automatic motherboard speed control (powerful airflow when...
  • Streamlined redux edition: proven Noctua quality at an attractive price point, wide range of optional accessories (anti-vibration mounts, S-ATA...
Bestseller No. 17
Noctua NF-A14 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version (140mm,...
  • Premium quiet fan, 140x140x25mm, 5V, 4-pin PWM, max. 1500 RPM, max. 24.6 dB(A), >150,000 h MTTF
  • Award-winning 140x25mm A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 5V 4-pin PWM version (1500rpm maximum speed) with polarity protection for 5V applications with PWM speed control
  • USB power adaptor cable allows the fan to run on devices with USB host ports, power banks or USB power supplies such as those used by smartphones
  • Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connection to proprietary fan headers
Bestseller No. 19
Noctua NF-A9x14 PWM, Premium Quiet Fan, 4-Pin (92x14mm, Brown)
  • Premium quiet fan, 92x92x14 mm, 12V, 4-pin PWM, max. 2200 RPM, max. 19.9 dB(A), >150,000 h MTTF
  • Award-winning 92x14mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 14mm slim design is ideal for low-profile 9cm CPU coolers (e.g. Noctua NH-L9 series), compact PC cases and other space-restricted applications
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 500-2200rpm speed range (1700rpm max. with supplied Low-Noise Adaptor)
  • Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header
Bestseller No. 20
Noctua NF-A12x25 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black)
  • Premium quiet fan, 120x120x25mm, 12V, 4-pin PWM, max. 2000 RPM, max. 22.6 dB(A), >150,000 h MTTF
  • Next-gen A-series design combines high airflow and high static pressure performance, ideal both as a case fan and for CPU coolers, watercooling...
  • State-of-the-art engineering (AAO frame, Flow Acceleration Channels, record tight 0.5mm tip clearance) and construction (Sterrox LCP material,...
  • 4-pin PWM version for automatic speed control via 4-pin PWM motherboard fan headers, 450-2000rpm speed range (near silent at idle, powerful under...
  • chromax.black.swap edition with swappable red, black, white, blue, yellow, grey and green anti-vibration pads for colour-customising (4 pads of each...

Having trouble finding a great Noctua Slim 140mm Fan?

This problem is well understood by us because we have gone through the entire Noctua Slim 140mm Fan research process ourselves, which is why we have put together a comprehensive list of the best Noctua Slim 140mm Fans available in the market today.

After hours of searching and using all the models on the market, we have found the best Noctua Slim 140mm Fan for 2023. See our ranking below!

How Do You Buy The Best Noctua Slim 140mm Fan?

Do you get stressed out thinking about shopping for a great Noctua Slim 140mm Fan? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Noctua Slim 140mm Fan, which is why we have assembled a comprehensive list of the greatest Noctua Slim 140mm Fan available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Noctua Slim 140mm Fan that you consider buying. Your questions might include the following:

  • Is it worth buying an Noctua Slim 140mm Fan?
  • What benefits are there with buying an Noctua Slim 140mm Fan?
  • What factors deserve consideration when shopping for an effective Noctua Slim 140mm Fan?
  • Why is it crucial to invest in any Noctua Slim 140mm Fan, much less the best one?
  • Which Noctua Slim 140mm Fan are good in the current market?
  • Where can you find information like this about Noctua Slim 140mm Fan?

We’re convinced that you likely have far more questions than just these regarding Noctua Slim 140mm Fan, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Noctua Slim 140mm Fan, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Noctua Slim 140mm Fan. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Noctua Slim 140mm Fan buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Noctua Slim 140mm Fan currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Noctua Slim 140mm Fan has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Noctua Slim 140mm Fan?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Noctua Slim 140mm Fan.
  5. Customer Ratings: Number ratings grade Noctua Slim 140mm Fan objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Noctua Slim 140mm Fan.
  7. Product Quality: You don’t always get what you pay for with an Noctua Slim 140mm Fan, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Noctua Slim 140mm Fan is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Noctua Slim 140mm Fan information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Noctua Slim 140mm Fan is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the Noctua nf-a14 fan?

A: The NF-A14 is a premium quality quiet 140mm fan with a square frame that complies with Noctua’s AAO (Advanced Acoustic Optimisation) standard. Its square shape and 140mm mounting holes (124.5mm spacing) make it ideal for use on watercooling radiators or as an upgrade for 140mm case fans.

Q: What is a slim 140mm fan?

A: A regular or standard 140mm fan is 25mm thick but a slim 140mm fan is only 15mm thick and can really slide or fit in tight places. It is comparatively easier to find thin 120mm fans compared to thin 140mm fans. So, here in this post, I am going to list down the best slim 140mm fans for use in low profile cases, radiators and on heatsinks.

Q: Should I install a 140mm or 120mm fan in my case?

A: Also, the power consumption of both 120mm and 140mm fans are almost identical. So, if your low profile, SFF or normal PC case has enough room for a 140mm fan then it is generally better to install a 140mm slim fan in place of a slim 120mm fan. Low profile 140mm fans are generally used in standard and slim form factor PC cases and with radiators.

Q: What is the difference between the Noctua nh-u12s and NH- U14s?

A: The NH-U14S. The last Noctua we reviewed, the NH-U12S, was a slim tower heatsink with a 120 mm fan that offered high efficiency in a more compact form factor than the usual fare. The NH-U14S is its big brother, a more substantial version with a 140 mm blower.